lpc: drop pcie host dependency

Doesn't look like that header is used.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/isa/lpc_ich9.c

@@ -39,7 +39,6 @@
 #include "hw/isa/apm.h"
 #include "hw/i386/ioapic.h"
 #include "hw/pci/pci.h"
-#include "hw/pci/pcie_host.h"
 #include "hw/pci/pci_bridge.h"
 #include "hw/i386/ich9.h"
 #include "hw/acpi/acpi.h"